Rajasthan Board Class 10 Science Chapter 20 Solution Road Safety Education RBSE Class 10 Science Solution for Chapter 20
Questions and answers.
(1.) What type of bulb is used in fog lamps?
Ans – halogens bulbs are used.
(2.) How does yellow cellophane paper help to drive on a foggy day?
Ans- yellow colour has highest wavelength and which is less scattered by fog with this light visibility will increases for the dirvers that’s why yellow cellophane paper is used.
(3.) Why is a cell phone prohibited by the law for a person driving?
Ans- because it is very dangerous, physically holding a cellphone removes one hand from the controls making accidents and cellphone make attention on away from road and driving.
(5.) How do we make children below the age of 10 travel in a vehicle?
Ans- we say childrens to hold tightly to your parents or in the car wear seat belt and do not do any misbehavior like remove hands from the car etc.
(6.) Which type of mirror is used in the headlight of vehicles?
Ans- concave mirrors are used.
(7.) Why is a convex mirror is used as a rear view mirror?
Ans- it gives wider field of view, while allows the drivers see most the vehicles or traffics behind him/her.
(8.) Why does the battery of a vehicle get discharged if not in use for a long period of time?
Ans- because it losses it’s capacity over time due to internal leakage or damage and after it discharged.